| 褐家鼠种群动态初步研究 |
| |
| 引用本文： | 杨再学,郭世平.褐家鼠种群动态初步研究[J].植物保护学报,1996,23(1):61-65. |
| |
| 作者姓名： | 杨再学 郭世平 |
| |
| 作者单位： | 贵州省余庆县植物保护站，贵州省余庆县植物保护站 余庆 564400，余庆 564400 |
| |
| 摘 要： | 本文报道了1986—1993年贵州余庆县褐家鼠种群动态的研究结果。共解剖标本676只(雌353只,雄323只),对其雄鼠睾丸下降率,雌鼠怀孕率、胎仔数、繁殖指数的季节变化及年度差异和种群数量消长动态作了系统分析,研究期间平均怀孕率为22.03％,平均胎仔数为7.92只,繁殖指数为0.7321,每年1—3月和10—11月为两次妊娠高峰。确定了各年龄组的体重标准,研究了褐家鼠的肥满度。
|
| 关 键 词： | 褐家鼠 种群动态 年龄结构 |
A PRELIMINARY STUDY ON THE POPULATION DYNAMICS OF RATTVS NORVEGICUS |
| |
| Yang Zaixue and Guo Shiping.A PRELIMINARY STUDY ON THE POPULATION DYNAMICS OF RATTVS NORVEGICUS[J].Acta Phytophylacica Sinica,1996,23(1):61-65. |
| |
| Authors: | Yang Zaixue and Guo Shiping |
| |
| Institution: | Yuqing Plant Protection Station, Guizhou Province, Yuqing and Yuqing Plant Protection Station, Guizhou Province, Yuqing |
| |
| Abstract: | During 1986 -1993, a preliminary study on the population dynamics of Rat-tus norvegicus was carried out at Yuqing, Guizhou. A total number of 676 specimens were collected and dissected (353 males and 323 females).
The population age was classified according to the body weight with reference to reproductive character into 5 categories (young, sub-adult, adult I , adult II and elder).
Two peaks of pregnant rate were occurred each year, one from January to March and another at October to November. |
| |
| Keywords: | Rattus narvegicus population dynamics population age group |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《植物保护学报》浏览原始摘要信息 |
| 点击此处可从《植物保护学报》下载免费的PDF全文 |
|
